def test_over_constraint(self):
"""
Test over constraint problem
"""
r1 = BoxStyle()
r2 = BoxStyle()
r3 = BoxStyle()
r1.min_size = Size(10, 10)
r2.min_size = Size(20, 5)
s = Solver()
s.add(TopEq(r1, r2))
s.add(MinVDist(r1, r2, 20))
self.assertRaises(SolverError, s.solve)
def test_bottom_eq(self):
"""
Test bottom eq constraint
"""
r1 = BoxStyle()
r2 = BoxStyle()
r1.min_size = Size(10, 10)
r2.min_size = Size(20, 5)
r1.size = Size(10, 10)
r2.size = Size(20, 5)
s = Solver()
s.add(MinSize(r1))
s.add(MinSize(r2))
s.add(BottomEq(r1, r2))
s.solve()
self.assertTrue(r1.size.width >= 10)
self.assertTrue(r1.size.height >= 10)
self.assertTrue(r2.size.width >= 20)
self.assertTrue(r2.size.height >= 5)
self.assertEquals(0, r1.pos.y)
self.assertEquals(5, r2.pos.y)
def test_solver(self):
"""
Test (simply) constraint solver
"""
r1 = BoxStyle()
r2 = BoxStyle()
r3 = BoxStyle()
r1.min_size = Size(10, 10)
r2.min_size = Size(20, 5)
r3.min_size = Size(5, 15)
s = Solver()
s.add(MinSize(r1))
s.add(MinSize(r2))
s.add(MinSize(r3))
s.add(TopEq(r1, r2))
s.add(MinHDist(r2, r3, 10))
s.solve()
self.assertTrue(r1.size.width >= 10)
self.assertTrue(r1.size.height >= 10)
self.assertTrue(r2.size.width >= 20)
self.assertTrue(r2.size.height >= 5)
self.assertTrue(r3.size.width >= 5)
self.assertTrue(r3.size.height >= 15)
self.assertEquals(40, r1.size.height)
self.assertEquals(40, r2.size.height)
self.assertTrue(r3.pos.x - r2.pos.x - r2.size.width >= 10)